Daikin RDT Installation And Maintenance Manual page 28

Phase III . Reconnect Power and Control Wiring
Connect the power block correctly and maintain proper
phasing. Improper installation can cause severe equipment
damage.
The DX coil/condenser section contains power and control
harnesses that have their excess length in the blank or heat
section, which normally is immediately downstream of the fan.
Once the sections are physically reconnected, the ends of
the power harness are fed back through the unit base into the
junction box, per the unit's electrical schematics.
1. Make electrical connections and reinstall inner raceway
cover as shown in Figure
2. When power wire reconnection is complete, reinstall the
inner raceway cover in the blank or heat section.
33 shows a typical installation of the raceway cover.
3. Run the control harnesses by removing the external
raceway covers on either side of the unit split.
4. Remove the excess harness length from the external
raceway on the DX side of the split; then route along the
raceway through the bushed hole in the fan section and
into the junction box where control wiring terminal blocks
are provided for reconnection.
5. Make all electrical connections per the unit's electrical
schematics.
6. Reinstall the external raceway covers after routing of the
control wires is complete.
7. Draw through cooling coils only. Reconnect refrigerant
piping. These refrigerant circuits for these units are
shipped with a holding charge only.
what the installer sees at the shipping split
a. To bridge the gap and connect the piping, remove
the refrigerant piping caps and add fittings and
copper tubing, as required.
b. Evacuate and charge the unit. See
further details.
IM 893-10 • ROOFPAK SINGLEZONE UNITS
CAUTION
33.
Figure
Figure 34 illustrates
page 31
Figure 33: Electrical Connections/Cover Installation
If applicable, install as shown
with provided fasteners.
After routing wires,
install inner raceway
cover (see step 6).
Figure 34: Refrigerant Lines
Capped
refrigerant
lines
for
28
M I
eChanICal nsTallaTIon
3.72 ref.
(94 mm)
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